Re: [Cppcms-users] Login mechanism

[Christian G. <chr...@gm...>]

Thanks a lot,

I went with solution 3 and its working very nice.

--
Christian Gmeiner, MSc


2012/5/21 Artyom Beilis <art...@ya...>:
>
>
> ________________________________
>> From: Christian Gmeiner <chr...@gm...>
>>
>>
>>Hi all,
>>
>>I am very new to cppcms but I am quite far in doing a conversion of a
>>RoR app to cppcms.
>>On thing thats missing is the user login. I have a login sub-app,
>>which works nicely but I am looking
>>for a way to check if users is login in on every page access -
>>something like before_filter in RoR.
>>
>>Does there exists some linke that in cppcms?
>
> Don't know how "before_filter" in RoR works. However there are two options:
>
> 1. If you want to check login for entire sub-application you can override main,
>    check if user logged in and if it is not put some redirect header
>    and not continue.
>
> 2. You can provide some kind guard in one of your base classes:
>
>    void check_logged_in()
>    {
>        if(!session().is_set("user_id")) {
>            throw not_logged_in();
>
>        }
>
>    }
>
>    And add it in every function that requires login
>
>
>    And override the main of tompost application with
>
>    void main(std::string url)
>    {
>       try {
>          cppcms::application::main(url);
>
>       }
>       catch(not_logged_in const &) {
>           response().set_redirect_header(...)
>           return;
>
>       }
>
>    }
>
>
> 3. Or even more simple without exceptions:
>
>
>    bool check_logged_in()
>    {
>        if(!session().is_set("user_id")) {
>           response().set_redirect_header(...)
>           return false;
>        }
>        return true;
>
>    }
>
>    And on your pages:
>
>       if(!check_logged_in())
>         return;
>
>
>
>
>
> Artyom Beilis
> --------------
> CppCMS - C++ Web Framework:   http://cppcms.com/
> CppDB - C++ SQL Connectivity: http://cppcms.com/sql/cppdb/
>
>
>>
>>thanks
>>--
>>Christian Gmeiner, MSc
>>
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>>
>>
>>
>
> ------------------------------------------------------------------------------
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> threat landscape has changed and how IT managers can respond. Discussions
> will include endpoint security, mobile security and the latest in malware
> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
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